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Temperature Temperature SensorsSensors
TEMPSENSI N S T R U M E N T S
www.tempsens.com
Thermocouples
RTDs
Compensating Cables
Non Contact Pyrometers
Line Scanner
Furnace Camera
Thermal Imager
Thermography Survey
Temperature Calibration
Equipment
Calibration Services
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TEMPSENS
STOVE DOME THERMOCOUPLE
A Blast furnace consist of four major sections
> Blast furnace
> Charging unit
> Gas cleaning equipment
> Hot blast stove
Stove dome / hot blast stove is one of the most critical section
in the steel industry. The hot blast has 3 stage operation, either
on gas, on blast or bottled up (ready and waiting to be put on
blast).Temperature is one of the major parameter for controlling of
this critical process. The temperature inside the blast furnace is
about 1100°C and high pressure. The high temperature and high
pressure makes the assembly very critical.
The critical components of Stove dome thermocouple are :?
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Element : 'S' Type / 'R' type , recommended 0.50 or 0.45mm, in
some cases 'N' type thermocouple can be used for cost saving where
the temperature is max 1100°C.
Inner protection tube : 99.7% Recrystalised Allumina
Outer tube (Options):
Recrystalised Allumina 99.7% - High wall thickness
recommended
Recrystalised Silicon Carbide – Better thermal shock
resistant
Inconel 600 – Better mechanical strength, temperature limited to
1150°C
Inconel 600 with ceramic coating – good mechanical strength and
good abrasion resistance, temperature limited to 1100°C
Glass Sealing : Glass sealing provides a pressure boundry, even
if the bottom of the thermocouple breaks there shall be no leakage
from the thermocouple head
Holding tube : SS310
Flange : Welded (recommended) or threaded
Head : Die cast aluminium, Ingress protection IP67
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TEMPSENS
COKE OVEN THERMOCOUPLE
Coke is the most important raw material fed into the blast
furnace in terms of its effect on blast furnace operation and hot
metal quality. The coke making process involves carbonization to
high temperatures (1100°C) in an oxygen deficient atmosphere in
order to concentrate the carbon. The commercial coke making process
can be broken down into two categories: a) By-product Coke making
and b) Non-Recovery/Heat Recovery Coke making.
Element : 'S' Type / 'R' type , recommended 0.50 or
0.45mm.Double Protection tube : 99.7% Recrystalised Allumina with
high wall thickness and inner tube.Holding tube : SS310, SS316Head
: Die cast aluminium, Ingress protection IP67
The critical components of Coke oven thermocouple are :?
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Refractory thermocouple (BF thermocouple)
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Refractory thermocouples are very important for the startup
phase and running phase of the refractory in the steel plants.
These are normally very long length thermocouples (upto 40 meters)
in mineral insulated construction.
Thermocouple type : K, Mineral insulated Metal sheathedOuter
sheath : SS316/ SS310 / Inconel 600Sheath Dia : 3mm / 4.5mm / 6mm /
8mmLength : As per requirementTermination : Aluminium Head or
Teflon flying leads
Thermocouples of various lengths can be grouped together in a
single flange, for a particular area of the furnace.
HEARTH REFRACTORY THERMOCOUPLE
outer
of coal
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TEMPSENS
GENERAL THERMOCOUPLE & RTD
Type : J, K, T, E, NElement size (MI): 1, 1.5, 3, 4.5,6,8
(mm)(Non-MI) : 1.2, 1.6, 2, 2.5, 3.2 (mm)Protection sheath:
Seamless SS 316,SS 310, HRS 446, INCONEL,
Nickel, Monel, Hastalloy, Titanium, Ceramic, Silicon carbide
etc
Configuration : Simplex / Duplex / Multipoints
High accurate Thermocouples for variety of application
Slide shoe RTDsVibration proof RTDs for DG setsBearing &
Winding temperature RTDsHandheld & Probe in various designsRTDs
with IBR approved Thermowells.
MINERAL INSULATED RTDs
SPECIAL
Coated ThermocouplesThermocouples with IBR Approved
ThermowellsDrilled Bar stock
Type : Pt 100 , 200 , 500 , 1000
Copper 50, 53 etc.
Element : Wire wound ceramic encapsulated
Wire wound Glass encapsulated
Thin film ceramic encapsulated
Connection : 2 , 3 , 4 wire
Accuracy : Class A, B, 1/2 , 1/3 , 1/5 DIN
Protection sheath: SS 304, SS 316, SS 310, INCONEL,
Hastalloy, Monel etc.
BASE METAL THERMOCOUPLES
SPECIAL
Quick Response Thermocouple
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Fast response thermocouple normally K type with miniature or
Standard connector for DRI kiln application and normally used with
a hand held indicator for checking immediate temperature.
Thermocouple type K, Mineral insuatkedOuter sheath : SS316/
SS310 / Inconel 600Sheath Dia : 3mm / 4.5mm / 6mm / 8mmLength :
600, 750, 1000mm (As per req)Termination : miniature or standard
connectors
in dia meter 3mm / 4.5mm or 6mm with SS316 / Inconel
sheathing.
DRI KILN THERMOCOUPLES
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Compensating and Extension Cables for thermocouples
J,K,T,E,N,R,S,B Types. RTD Cables in three wire & four wire
configuration for simplex and six & eight wire for duplex are
available.
Other Cables for Signal, Control and Instrumentation are
available with variety of insulation and various configurations
14 to 36 gauge (AWG/SWG) Solid / MultistrandSingle and double
fibre glass, teflon, ceramic fibre, silica fibre, SS braided, PVC
etc.Armored / Unarmored
Wire :Gauge :Conductor :
Insulation :
CABLES FOR TEMPERATURE SENSORS & INSTRUMENTATION
TEMPSENS
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-60....750°C with laser targeting light
-60....1500°C with Dual laser Pointer, Buzzer, Flash LED,
Backlight and Data Storage
200....2400°C with Dual laser Pointer, Buzzer, Backlight and
Data Storage
Temperature Range :
Single colour & two colour pyrometers
Special Molten Metal pyrometer
Fiber Optic Pyrometers
E- Series : 250....3200°C
AST 250-450 : 250....2500°C in different temperature range
Fiber Optics : 400....2500°C in different temperature range
L- Series : 0....800°C
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0.062°C0.05°C0.10°C0.18°C1.25°C2.2°C
1.6°C2.4°C3.6°C3.6°C4.1°C
Cold Junction Boxes and Probe for ThermocoupleType -
J/K/E/N/R/S/B Dual Probe Possible in one Housing
±0.06°C±0.05°C±0.10°C±0.18°C±1.24°C±2.20°C±3.70°C6
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±0.034°C±0.040°C
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TECHNICAL REFERENCES
TOLERANCE VALUES OF RTD PT-100 (IEC 751)
TEMP (°C) BASIC VALUES TOLERANCE
CLASS A CLASS B
(+ °C) (+ ?) (+ °C) (+ ?)
-200 18.52 0.55 0.24 1.3 0.56
-100 60.26 0.35 0.14 0.8 0.32
0 100 0.15 0.06 0.3 0.12
100 138.51 0.35 0.13 0.8 0.30
200 175.86 0.55 0.20 1.3 0.48
300 212.05 0.75 0.27 1.8 0.64
400 247.09 0.95 0.33 2.3 0.79
500 280.98 1.15 0.38 2.8 0.93
600 313.71 1.35 0.43 3.3 1.06
700 345.28 - - 3.8 1.17
800 375.70 - - 4.3 1.28
COLOUR CODE OF COMPENSATINGCABLES & THERMOCOUPLES
BRITISHto
BS 1843
AMERICANto
ANSI/MC96.1
GERMANto
DIN 13714
INDIANto
IS : 8784
JAPANESEto
JIS C 1610-1981Type
K
T
J
E
R
S
B
N
EMISSIVITY CHART
EMI in % EMI in %
“Black body” 100 Oil Paints 85..95
Human skin 98 Asphalt 85
Black matter 95 Textiles 75..95
Carbon black 95 Graphite 75..92
Wood 80..92 Cement 90
Masonary 85..95 Water 95
Chamotte 85..95 Glass 80
Rubber 85..95 Quartz 80
Porcelain 85..95 Steel (Oxidized) 60..80
Ceramics 85..95 Steel (Blank) 10..30
Paper 85..95 Aluminium (Blank) 2..15
SHEATH MELTING USABLE CHARACTERISTICSPOINT °C TEMP. °C
SS-304 1430 800 High resistance to heat and corrosion
SS-316 1430 900 Excellent resistance to Heat, Acids &
Alkalies
SS-321 1400 900 Excellent resistance to corrosion
SS-310 1410 1100 Good oxidation resistance at low temperature
and sulphur atmosphere
HRS-446 1400 1150 Excellent oxidation resistance at elevated
temperature and sulphur atmosphere
Inconel 600/800 1400 1100 Excellent oxidation resistance (do not
use in sulphur atmospheres)
High Alumina 610 1500 General purpose
Sintered Alumina 1800 1500 Excellent thermal, mechanical,
electrical 710/C-799 and corrosion resistant.
Recrystallised 1850 1500 Outstanding resistance to
thermalSilicon Carbide shock, good mechanical strength.
-100 -3,379 -4,633 -3,554 -2,407 - - - -5,237
0 0 0 0 0 0 0 0 0
100 4,279 5,269 4,096 2,774 0,646 0,647 0,033 6,319
200 9,288 10,799 8,138 5,913 1,441 1,469 0,178 13.421
300 14,862 16,327 12,209 9,341 2,323 2,401 0,431 21.036
400 20,872 21,848 16,397 12,974 3,259 3,408 0,787 28.946
500 - 27,393 20,644 16,748 4,233 4,471 1,242 37.005
600 - 33,102 24,905 20,613 5,239 5,583 1,792 45.093
700 - 39,132 29,129 24,527 6,275 6,743 2,431 53.112
800 - 45,494 33,275 28,455 7,345 7,950 3,154 61.017
900 - - 37,326 32,371 8,449 9,205 3,957 68.787
1000 - - 41,276 36,256 9,587 10,506 4,834 76.373
1100 - - 45,119 40,087 10,757 11,850 5,780
1200 - - 48,838 43,846 11,951 13,228 6,786
1250 - - 50,644 45,694 12,554 13,926 7,311
1300 - - 52,410 47,513 13,159 14,629 7,848
1400 - - - - 14,373 16,040 8,956
1500 - - - - 15,582 17,451 10,099
1600 - - - - - - 11,263
1700 - - - - - - 12,433
THERMOCOUPLES REFERENCE DATA (ITS 90) mV v/s Temperature"T"
Cu-CuNi "J" Fe-CuNi "K" NiCr-NiAl "N" NiCrSi-NiSi "S" PtRh10%-Pt
"R" PtRh13%-Pt "B" PtRh30%-PtRh6%
Calibration IS 2056/ASTME 230 IS 2057/ASTME 230
TolerancesStandard
Special
+ 1°C or + 0.75%
+ 0.5°C or + 0.4%
+ 2.2°C or + 0.75%
+ 1.1°C or + 0.4%
+ 2.2°C or + 0.75%
+ 1.1°C or + 0.4%
+ 2.2°C or + 0.75%
+ 1.1°C or + 0.4%
+ 1.5°C or + 0.25%
+ 0.6°C or + 0.1%
+ 1.5°C or + 0.25%
+ 0.6°C or + 0.1%
+ 0.5%
Over 800°C
TE
MP
ER
AT
UR
E º
C
SHEATH MATERIALS
"E" NiCr-CuNi
+ 1.7°C or + 0.5%
+ 1°C or + 0.4%
IS 2054/ASTME 230 ASTME 230 IS 2055/ASTME 230 IS 2055 IS
6720
Other sheath materials like Titanium, Molybdenum, Graphite,
Aluminum etc. are available against specific requirement
TYPE
ASTME 230
TEMPSENS
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Always one step ahead….Committed to success
TEMPSENS Instruments (I) Pvt. Ltd is a part of Pyrotech group
which was established by four technocrats in 1976 at Udaipur, with
our first product as Thermocouples and RTDs. To enhance our
customer's success we provide high quality products and services
for “Temperature solution”, tailored to their needs, and delivered
to meet their schedule.
35 years of experience
Large Customer base
Execute Major Projects of Steel industries in India and
Abroad
Production Expertise- Specialised Team& Facility for Steel
T/C's, Pyrometer
Thermocouple, Pyrometers, Kiln Shell Scanner Camera.
NABL Accredited Calibration Laboratory upto 1500 °C
Fixed Point Temperature Calibration - TPW, Ga, Sn, Zn &
AL
We have tied up with world leaders in Temperature measuring
technology for critical components, Non contact Temperature
measurement and Thermal imaging solutions. We add value to these
products and deliver complete engineered solutions, backed by
efficient service and application support.
Today we have strong sales and service network operating from
important locations of India. Continuing our constant endeavor of
delivering solutions for temperature technology to our large base
of over two thousand satisfied customers.
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